1. Daily Maintenance Checks (5 Minutes)

• Battery level: Confirm the battery is sufficiently charged for planned travel.
• Brakes: Test the electromagnetic brakes by releasing the joystick at slow speed. The chair should stop immediately and smoothly.
• Tires: Visually inspect for cuts, embedded objects, and wear. For pneumatic tires, check that pressure feels firm.
• Joystick and controller: Ensure the joystick moves freely and returns to center properly. Check that cables are not frayed or pinched.
• Seat and restraints: Verify seat belt fastens securely. Check cushion and backrest for damage.
• General condition: Look for loose bolts, unusual noises, or damage to the frame, footrests, and armrests.

2. Weekly Maintenance Tasks (30 Minutes)

• Clean the chair: Wipe down the frame, seat, and armrests with a soft damp cloth and mild detergent. Avoid harsh chemicals that can damage plastic and paint. Do not spray water directly on electrical components.
• Check tire pressure: For pneumatic tires, inflate to the pressure marked on the tire sidewall. Under-inflated tires reduce range, increase motor strain, and cause premature wear. Over-inflation leads to a bumpy ride and increased puncture risk.
• Inspect battery terminals: Ensure connections are clean and tight. Corroded terminals cause power loss and charging problems. Clean with a dry cloth if needed; never use liquid cleaners near batteries.
• Test lights and horn: Verify headlights, taillights, turn signals, and horn all function correctly.
• Check wheel alignment: Push the chair manually on a flat surface. It should roll straight without pulling to one side.

3. Monthly Maintenance Procedures (1 Hour)

• Tighten all bolts and screws: Vibration from regular use can loosen hardware. Check frame joints, armrest mounts, footrest brackets, and wheel axles. Do not over-tighten, as this can strip threads.
• Lubricate moving parts: Apply a small amount of silicone lubricant to folding hinges, footrest pivot points, and adjustment levers. Never use oil-based lubricants on electrical components or brake mechanisms.
• Inspect motor brushes: For brushed motors, check brush wear and replace if worn down. Most modern electric wheelchairs use brushless motors which do not require this step.
• Battery health check: Fully charge the batteries and note the range achieved. Significantly reduced range indicates batteries nearing end of life.
• Inspect suspension: Check shock absorbers and springs for damage, rust, or fluid leakage.

4. Annual Professional Servicing

• Full diagnostic check of controller, motors, and wiring
• Battery capacity testing
• Brake adjustment and wear inspection
• Wheel bearing replacement if needed
• Firmware updates for electronic systems
• Structural inspection of frame and welds

5. Battery Care and Lifespan Extension

• Charge properly: Charge after each use, even if only partially discharged. Do not leave batteries discharged for long periods.
• Avoid deep discharge: Do not run the battery completely flat. Recharge when the gauge drops to 20–30%.
• Store correctly: If storing for more than two weeks, charge to 50–70% and store in a cool, dry place. Top up charge every month.
• Temperature protection: Do not charge batteries in temperatures below 0°C or above 40°C. Extreme heat and cold shorten battery life dramatically.
• Use the correct charger: Always use the manufacturer-supplied charger. Third-party chargers may have incorrect voltage and damage batteries.

6. Common Troubleshooting Solutions

• Chair will not move: Check that the controller is turned on and the battery is charged. Ensure the freewheel lever is in the drive position. Check for loose battery connections.
• Short battery range: Under-inflated tires, heavy loads, hilly terrain, and cold weather all reduce range. If range drops suddenly, batteries likely need replacement.
• Chair pulls to one side: Uneven tire pressure, misaligned wheels, or motor imbalance. Check tire pressure first; if problem persists, consult a technician.
• Strange noises from wheels: Debris caught in tires, worn bearings, or loose hardware. Inspect and clean wheels; if noise continues, schedule service.
• Joystick unresponsive: Check cable connections. Clean the joystick base of dust and debris. If still not working, the controller may need repair or replacement.

7. Storage and Seasonal Care

• Store indoors in a clean, dry location away from direct sunlight and temperature extremes
• If storing outdoors temporarily, use a waterproof cover designed for electric wheelchairs
• Remove batteries for long-term storage and keep them in a climate-controlled area
• Inflate tires to recommended pressure before storage to prevent flat spots

Conclusion